Cosa è cambiato in EDuke32, build per build

make sector keep old firstwall when adding inner loop, rewrite setfirstwall to use malloc'ed memory for temp storage instead of end of sector[], reintroduce correct searchwall determination in Polymer mouse picker (intersection of xy projection of aiming ray with wall); added commands to m32script: shiftvarvar[lr], ifhighlighted, ifin3dmode, updatehighlight, sethighlight; coded prototype terrain helper based on isolines and triangle strips.

have default grid size in configuration